<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script>
//			                0      1      2      3       4
			var names = ['张国宝','王涛','吴勇','任天明','蔡立言','安辞同'];
			
//			0--(names.length-1)
//			n   m
			
			var rand = Math.floor(Math.random()*names.length);
		
			document.write(names[rand]);
			
		</script>
	</body>
</html>
